splenius muscle is a noun meaning "either of two flat muscles that extend from the upper vertebrae to the base of the skull and serve to rotate or flex or extend the head and neck". It carries one recorded sense.
either of two flat muscles that extend from the upper vertebrae to the base of the skull and serve to rotate or flex or extend the head and neck
Definitions, synonyms and semantic relations for splenius muscle come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.